When choosing a portable WiFi device for travel, five features matter most. Global coverage is the foundation — a device that works in 140+ countries with automatic network switching means you never have to swap providers mid-trip. Battery life is equally critical; long travel days demand a minimum of 10–12 hours per charge, so look for devices that can last from a morning flight to a late-night hotel check-in. For network speed, 4G LTE support is the standard to insist on — anything less will struggle with video calls and remote work tasks. Data flexibility separates good devices from great ones; travel plans change unexpectedly, so prepaid reload options with no contracts give you the freedom to scale up or down as your trip evolves. Finally, check the device connection limit — if you’re traveling with family or carrying a laptop, phone, and tablet, you need a hotspot that supports up to 10 simultaneous connections without slowing down.